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GST Calculator (Free Online)

Calculate GST amount, inclusive and exclusive prices instantly. Use this free GST calculator to add or remove GST with accurate results for invoices and billing.

GST Calculator
Includes GST?
Same State (CGST + SGST)
Enter amount to calculate GST
GST = Amount × Rate / 100 · Inclusive: Base = Amount / (1 + Rate)

How to calculate GST

GST calculation helps determine the tax amount included in a product or service price.

Step 1

Enter Amount

Input the base price or total amount for GST calculation.

Step 2

Select GST Rate

Choose the applicable GST percentage such as 5%, 12%, 18%, or 28%.

Step 3

Get GST Value

View GST amount along with total or base value instantly.

Why use this tool?

Calculate GST inclusive and exclusive values instantly

Useful for invoicing and billing accuracy

Supports multiple GST rate slabs

Saves time on manual tax calculations

Ideal for businesses, freelancers, and accountants

FAQs

What is a GST calculator?

How to calculate GST in India?

How does a GST calculator work?

What is the GST formula?

How to calculate GST inclusive amount?

How to calculate GST exclusive amount?

What is reverse GST calculation?

How to remove GST from a total amount?

How to add GST to a price?

What is 18% GST on an amount?

What are the current GST rates in India?

How to calculate GST in Excel?

How to use an online GST calculator?

Is there a free GST calculator available?

How to calculate GST for business invoices?

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GST Calculator (Free Online) | BillsDeck